Coffee urn



' Dec. 28 1926. 1,612,029

V. LAMBERT COFFEE' URN Filed Jan.` 8, 1924 Patented Dec. 28, 1926.

VCTGR LAMBERT, OF BROGKLYN, NEW YORK, ASSIGNC'R TO AARON M. SLOSS. 0FNEW YORK,

COFFEE URN This invention relates to coffee urns such as are commonlyused in hotels and restau rants, and involves the provision of a new andimproved type of urn which has various novel lcatures ot constructionpresently7 to le set torth.

Coffee urns ordinarily consist of a cylindrie-al casing made of anon-corrodilole metal supported on suitable legs. The lower end of theeasing is closed hy a head which lies a short distance within the casingand the flume of the burner impinges against this head, while theextending end of the casing terms a curtain to protect the flame. Thecasing is divided into two compartments by means of a partition which isalso cylindrical in form and has a rounded, closed end. 'l` he open endof the partition is secured to the casing hy a flangeand the outercompertinent so formed is for hot water while the inner compartn'icntcontains the coffee Tt is usual to provide a coffee comliqnid. n

partn'icnt with a liner made of porcelain or other vitreous material,and an voutlet is provided to that the coffee liquid may he withdrawnfrom the compartment and dispensed as required.

ln this type of urn the coffee is supported in a ling of fabric securedto a ring which is oit slightly greater diameter than the cofifeecompartment and is placed on the lateral flange with the heg hangingdown in the coffee coml'iartnient. rl`he liner requires reif-:iovaloccasionally for cleaning purposes and sometimes becomes hrolten orinjured in use so that it is desirable that the urn he arranged for easyremoval of the liner. Also the use ot a fabric bag for supporting theground collec not altogether sanitary and the fabric rots in use andmust loe frcqnently replaced.

u rllhe present urn is intended to overcome the several lobjectionablevfeatures of urns as constructed at present and above brieflydescribed.. and in this urn there is used a liner which extends into thepartition and is secured to the latter only at one point adjacent theoutlet from the compartment. 'l1 he lateral walls of the liner arespaced from the partition and the liner has a flange overlying theflange at the end of the partition hut not secured thereto, so that thedifference in the rate of expansion oit' the partition and liner willput no strain on the latter. .The urn contains a metal vessel for the1924. Serial No. 684.933.

ground coffee. This vessel is preferahly ot cylindrical forni having itslower end tapering and adapted to enter the open end of the coffeecompartment. The vessel has a porous end wall which lies at its lowerend and also contains a perforated partition which terms with the endwall a chamber for the coffee grounds. The upper end of the vessel isclosed by a ren'iovahh-x cover and attached to this cover is a spider,the legs of which are adapted to engage lugs located.

onvthe inner wall o'f the urn .so as to provide a. support lor the coverand the vessel whcn is secured thereto. Also mounted within the cover isa nozzle and one of' the legs otV the spider is hollow and connected tothis nozzle. The end of this hollow leg enters a lug which is alsohollow and connected et its outer end to a pipe which is in turn connected to the outlet from the coflee con'ipartment through a pump and athree-way valve. The third lopening of the valve is connected to a`measuring device extending .into the water compartment of the urn andwith this arrangement it is possible to open the measuring device and bythe operation ot the pump to transt'er a measured quantity of water fromthe compartment through the pipe, the lug, the hollow leg lof thespider, to the nozzle7 whence the water is discharged and passesdownwardly through the perforated partition, the mass of ground coffeeand the porous wall of the coffee compartment. Since a' single passageof water through the ground coffee is not sufficient to make liquid ofthe desired strength when water to the desired amount has beenintroduced through the coffee into the` cofl'ee com-v partment, thethree-way valve is actuated so as to cut off the measuring device andconneet the coffee compartment outlet with the pump, whereupon thelatter is brought into action to withdraw the liquid from the hottom ofthe coffee compartment and introduce it therein through the groundcoffee through the connections previously described.

The collec vessel is removable as a unit without the necessity ofemploying wrenches or other tools, and when the vessel l as heen takenout of the urn the connections at the bottoni of the collec compartmentmay he nnscrewed and the liner quickly withdrawn ln the accompanyingdrawings there is till CII

illustrated that form of the invention which is now preferred, and inthese drawings,

Fig. A1 is a vertical section ot' the new cotiee urn,

Fig. 2 is a side elevation,

Fig. 3 is a plan view with the cover removed,

'tance above the counter or table so that a burner may be placed underthe lower end with its flame impinging on the head 7. iilithin thecasing is a partition 9, cylindrical in cross section and having a domedclosed end 10. rit its upper end the partition has a lateral flange 11annular in form and welded or otherwise secured to the inner wall ct thecasingI G. rlhis partition 9 divides the urn into two compartments, theouter one 12 being tor water, while the inner one 13 is ttor collec.

liiounted wit-hin the coffee compartment is a liner 14 which has a shapecorresponding in general to the shape ot the partition, with anextension 15 on its lower end which rests against the inner wall of thepartition. The side wals t the liner, however, are spaced from thepartition, as is shown and this space is provided with a clean-out pipe14 having a pet cool: beyond the wall oi the casing so that the chamberwithin the partition may be tiushed out. At its upper end the linerterminates in a lateral tlange 16 which overlies the flange 11. At thelower end the liner has an extension 15 which has a lateral aperture inwhich is placed a bushing- 17 and' this bushing` passes through theorifice in the extension and through a similar orifice in the end of thepartition. At its lower end the bushing 17 is threaded as at 18 andenters a threaded passage in a sinnlar bushing 19 which lies outside thepartition in tlie'water compartment. This bushing 19 has threaded intoits lower end pipe 20 on the end of which is mounted a twoway tting 21,one outlet from wnich is connected with a pipe 22 which extends throughthe wall ot the casing ot the urn and carries a draiiw-oit valve 23 atits outer end. The other outlet from the fitting is connected witl apipe 24 which extends beyond the wall ot the caf-ng and is connected toone Another device 27 located on the outside ot the casing and connectedto a block 28 inside the water compartment ot the casing. This block 28carries a plurality of inlet pipes 29 which extend vertically in thecasing to ditt'erent heights. The measuring device forms the subject ofmy copending application, Ser. No. 631,923, tiled December 21, 1923, andneed not he described in detail. However, the construction or the deviceis such that any selected inlet pipe may be connected to the pipe 2G sothat the quantity of water which lies between the end of that inlet pipeand the water level in the water compartment may be withdrawn throughthe device.V

The third opening from the valve is connected to a pump 30 which may beeither manually or electrically operated. This pump has an outletconnected to a pipe 31 extending vertically and this pipe may be made ofgl" s so to be used for gauge purposes. fit its upper end the pipe 31 isconnected to another pipe 32 which threads into a bushing` 33 extendingthrough the wall of the casin ln the upper end of the casing there isprovided a shield 34 the upper end of which terminates in a bead 35which is adapted to overlie the rim of the casing. At its lower end theshield tapers inwardly and Jntends a slight distance within the flange16 o't` the liner. The flat portion 3G ot the shield which lies close tothe inner wall ot the casing has an aperture through which the bushing33 extends, this bushing being held in place by a nut 37 on the outsideot' the casing. Threaded into the inner end oit the bushing is an elbow38, the other end ot which has a. conical seat 39.

The vessel 'for the coffee is shown more clearly in Fig. l, and has acylindrical body 40 terminatingin a tapered end 41. The tapered endportion is connected to the main body ot the vessel so as to provide ashoulder 42 upon which rests a perforated metal plate 43. The taperedend of the vessel is closed by a porous wall 44 which may be in the formof a metal screen of suiiiciently line mesh so as to prevent the passagetherethrough ot finely pulverized coffee. The tapered portion of thevessel which is defined by the perforated plate 43 in the porous wall 44contains the ground collec shown at 45.

The vessel is provided with a domed cover 4G the edge ot which carries abead 47 which is to rest on a similar bear 48 on the rim ot' the body ofthe vessel. The vessel carries a plurality ot snap hooks 4f) which maybe slipped into place as shown in l to secure the body of the vessel tothe cover Extending through the top ot the cover is a pipe 5t), held inpiace by suitable loch nuts. The case at its lower end has a cup-shapedshield 51., spaced from the end of the pipe so as to provide a splashnozzle. Mounted on the pipe on either side of the cover are springplates 52, 52, which are held in place on the pipe by lock nuts. Theseplates serve to give the cover a resilient mounting with reference tothe pipe. The pipe 50 is threaded at its outer end into a hub 53 fromwhich extend radially and downwardly a plurality ot' legs 5st forming aspider. These legs have portions which enter slots formed in the lugs 55mounted on the inner wall ot' the casing and the hub with its lugsprovides a spider which serves as a support Yfor the cover and thevessel which is secured thereto. One of the legs 56 of the spider ishollow and is provided with a conical end 57 which is mounted to restupon the conical seat 39 of the elbow 38, thus establishing a connectionbetween the nozzle 5l and the pump 30. rlhe hub is also provided with ahandle 58 by which the vessel with its supporting spider may be quicklyremoved from place within the casing. lt will be understood that theslots in the lugs 55 are suitably formed so that the ends of the legs ofthe spider may be readily inserted therein and when the vessel ismounted in place its weight will hold the legs seated in the lugs andalso cause the conical tip 57 to be seated against the seat in the elbow3S so as to provide a substantially water-tight connection.

The urn casing is closed by a domed cover 59 provided with a handle 60.The rim ot this cover has a bead 61 which is intended to rest on thebead 35 and the cover has a flange 62 which extends downwardly withinthe shield 34 so that the cover is held firmly in place.

The urn is provided with a water inlet 63 located near its lower end;also a draw-off connection Gil. The water compartment is provided withthe usual gauge glass 65 so that the height of the water in the watercompartment may be readily ascertained.

In operation aquantity of water will be introduced into the watercompartment to any desired level, and brought to boiling temperature.This water is then withdrawn through the measuring device in Vmeasuredquantities and pumped through the pipes 3l and 32 and the hollow leg 56to the nozzle on the end of the pipe 50, whence the water is dischargedand passes down through the coffee in the cofee vessel and into, thecotfee compartment. The valve 25 may now be adjusted to cut oft themeasuring device and open the outlet from the coffee compartment to thepump whereupon the contents ot the cotl'ee compartment will again beconveyed to the nozzle and discharged into the collec compartmentthrough the ground coffee.l Should it become necessary at any time tointroduce fresh ground coffee into the vessel the cover of the urn willbe removed and the vessel removed by means of the handle 58. Since thelegs o't the spider are held in place simply by gravity the vessel maybe easily removed without the use of: tools. Jtiter removal the springhooks 49 are ,operated to permit the cover of the vessel to be taken ofithen the partition 43 is removed and the exhausted grounds replaced withfresh coffee. It will be noted that the legs o' the spider extend somedistance beyond the edge of the cover so that when the cover is removedit will rest on the ends of the spider, thus avoiding the possibilityot' damage being done to the cover itself and also to the nozzle withinit.

Should it become necessary at any time to remove the liner the cofieevessel is removed and the nuts 37 on the lugs which support the spiderare removed so that the lugs may be withdrawn from the apertures throughthe shield 34 and the wall of the casing. The bushing 18 may then be,unthreaded. F or this purpose the bushing will have a slot formed acrossthe upper tace into which a flat tool may be inserted. With the bushingunthrea-ded from the outer bushing 19 the liner is readily removable anda new one may be quickly inserted in place. lVith this type or" urn,however, the life of the liner is greatly increased because as the lineris supported and held against movement relative to the partition only atits closed end any diference in expansion and contraction between thematerial of the liner and the metal of the partition will not subjectthe liner to strain. The liner does not fit the wall of the partitiontightly, as will be apparent from Fig. 1, and consequently there is nopossibility of the partition exerting a collapsing strain which wouldcause the liner to crack.

By reason of the coffee being contained in a vessel which is madeentirely of metal, no replacement of the parts is necesary as isordinarily the case when a fabric bag is used. The coffee vessel alsomay be readily disassembled and all parts easily kept in a sanitarycondition.

I claim:

l. A cotee urn comprising the combination of a casing, a partition inthe casing dividing the latter into a water compart ment and a coffeecompartment, a vessel for ground cofiee suspended in the casing abovethe coffee compartment and having' no connection with the partitien, anozzle carried by the vessel, a connection from the outlet from thecoffee compartment to the nozzle, c

and a pump in said connection.

2. A cofi'ee urn comprising the combination of a casing, a partition inthe casing dividing the later into a water compartment and a coffeecompartment, a vessel tor ground cotlee, a spider secured to the vesseland adapted to engage portions oi the casing Jfor supporting the vesseltherein, one ol the legs of the spider being hollow, a nozzle Within thevessel connected with the end oi the hollow leg, a connection With anoutlet from the coffee compartment and with the end ot the hollow leg,and a pump in the connection.

A co'liee urn comprising the combination ot a casing, a partition Withinthe casing dividing the latter into a water conipartment and a cotteecompartment, the latter having an outlet, a liner in the eoiieecompartment having an outlet connected to the tirst outlet, a vessel forground coffee supported in the casing above the coiiee coinpartment andhaving no connection with the partition, a nozzle carried by saidvessel, a connection between the nozzle and the coiiee compartmentoutlet, and a pump in said connection. Y

et. A coiiee urn comprising the combination of a casing, a partitionWithin the casing dividing the latter into a water compartment and acoiiee compartment, the latter having an outlet, a liner in the cotleecompartment having an outlet connected with the iirst outiet, a vesselfor ground coffee supported in the casing above the cotl'ee compartmentand having no connection with the partition, said vessel having aportion extending into the coffee compartment below the end of theliner, a nozzle carried by the other end oi the vessel, a pipeconnection between the cottee compartment outlet and the nozzle, and apump in said connection.

ln a coffee urn comprising a casing divided into a Water compartment anda coii'ee conipartment, a closed vessel for ground cott'ee comprising ashell and a cover, a partition in the shell forming a coffee chamber,the shell having a porous Wall i'orining one end ot the chamber, meanssecured to the cover for mounting the vessel in the casing and a nozzlein the vessel adapted to be connected to the coifee compartment ot' theurn.

6. In a coffee urn comprising a casing divided by a partition into acoffee compartment and a Water compartment, the combination of a vesselfor ground coffee, means independent ot the partition for supporting thevessel in the casing and a nozzle in the vessel adapted to be connectedto the coffee compartment of the urn.

7. In a coffee urn comprising a casing divided into a coffee compartmentand a water con'ipartment, a vessel for ground coffee coniprising ashell and a cover, a spider attached to the cover and serving to supportthe vessel in the casing, one o't the legs ot the spider being hollovv,and a nozzle mounted in the cover and connected to the hollow leg.

8. ln a coffee urn comprising a casing divided into a coffee compartmentand a water compartment, a vessel tor ground coffee comprising a shellhaving a porous Wall, a cover for the shell, a removable perforatedpartitionin the shell forming a coee chamber, a nozzle mounted in thecover, and a' spider attached to the cover and serving to support thevessel in the easing, one of the legs of the spider being hollow andconnected to the nozzle.

9. A coti'ee urn comprising the combination of a easing, a partition inthe casing dividing the latter into a Water compartment and a cotieecompartment, a vessel for ground coiiee suspended in the casing abovethe coiifee compartment and having no connection with the partition, anozzle discharging into the vessel, a measuring device in the Watercompartment, a connection between the measuring device and the nozzleand a pump in said connection.

l0. A cotlee urn comprising the combination oit a casing, a partition inthe casing dividing the latter into a Water compartment and a cotfeecompartment, this coli'ee coinpartment being open at its upper end andhaving a. coffee outlet at its ,lower end, a closed vessel for groundcoffee suspended above the coiiee compartment, a nozzle carried by andWithin the vessel and a conduit extending through a Wall otl the vesseland having one end in communication with the nozzle and its other endconnected with the outlet from the cotl'ee con'ipartment.

ll. A coffee urn comprising the combination of a casing, a partition inthe casingI dividing the latter into a Water con'unirtnient and acoii'ee compartment, this cotiee coinpartment being open at its uppere-nd and having a cotl'ee outlet at its lower end, a closed vessel forground coli'ee suspended above the coti'ee compartment, a nozzle carriedby and Within the vessel and a conduit extending through a Wall of thevessel and having one end in communication with the nozzle and its otherend connected with the outlet trom the cotiee compartn'ient, this vesselbeing removable from the casing and' the connection between the conduitand the` coffee outlet being detachable.

12. A coffee urn comprising the combination of a casing, a partition inthe casing dividing the latter into a Water compartment and a coiieecompartment, a vessel for ground cottee positioned within the casingover the coffee compartment, a nozzle carried by and Within the vesseland a conduit extending through a Wall thereof With one end incommunication with the nozzle and its other end connected to an outletfrom the coii'ee compartment.

i3. A confee urn comprising the combination of a casing divided into aWater compartment and a coffee compartment, a removable vessel or groundco'tlee, a nozzle carried by and within the vessel and a oondnitextending through a wall of trie vessel with its inner end incommunication with the nozzle and its outer end terminating outside thevessel7 this outer end being adapted to .be detachably connected with anoutlet from the eotlee compartment whereby the eotlee liquid nay becirculated when the vessel is in place.

141. A coli'ee urn comprising the combination of a casing divided into awater conipartment and a coil'ee compartment, a removable vessel forground coti'ee, a nozzle Carried by and within the vessel, a conduitextending through a wall oif the vessel with its inner end incon'nnunication with the nozzle and its outer end terniinating outsidethe vessel and a measuring device within the water compartment, theouter end oi the conduit adapted to be detachably connected with themeasuring device whereby a measured quantity of water may be transferredfrom the water compartment to the coffee compartment when the vessel'isin place.

15. A coffee urn comprising the combination of a casing, a partition inthe casing dividing the latter into a water compartmeiiit and a coi'eecompartment, this coiee compartment being open at its upper end andhaving a coffee outlet at its lower end, a

shield resting upon the upper edge ot the casing, this shield being or'annular form and bridging the space between the Casing and the coffeecompartment and out of Contact with the walls of the coiee compartment,a vessel for ground coiee suspended above the coffee compartment andproiecting into the compartment through the annular shield, a nozzle inthe vessel and a pipe connection between the nozzle and the eoleeoutlet.

16. A coffee urn comprising the combination oic a Casing, a partition inthe easing dividingl the latter into a water compartmem and a coffeecompartment, this coffee Compertinent being open at its upper end andhaving a coffee outlet at its lower end, a shield of annular 'formbridging the space between the casing and the coiiee compartinent andprojecting a slight distance into the open end of the coffee eompartmentand out of Contact with the walls thereof, a vessel for ground col'leesuspended above the coffee compartment and projecting into theoompertinent through the annular shield, a noz zle in the Vessel and apipe connection be tween the nozzle and the coffee outlet.

ln testimony whereotl l a'flix my signature.

VICTOR LAMBERT.

